Super Pro Polishing Kit is the most extreme polishing process available. This is what Jewkes Engineering will use to create the smoothest, highest quality performing axles that go into our champion cars. Winning cars are made by paying attention to the smallest details, and axle preparation is at the top of the list when it comes to making a fast speedster. This kit includes Seven 5.5″x 4.5″ sheets of wet/dry sandpaper in the following grits: -600 -1000 -1200 -1500 -2000 -2500 -3000 -Leather strips to finish them up, with your favorite Polish. Included will be instructions on the exact process of creating the unltimate axle to make your Pinewood Derby speedster reach it’s maximum velocity! Rise above being just another derby dad … build with the pro’s at Jewkes Engineering and get the “Edge On The Competition!”